Previously-owned Tiffany & Co. Ribbon engagement ring. The ring is a size 4.25 (US), made of 950 platinum, and weighs 3.20 DWT (approx. 4.98 grams). It also has one I-color, VS1-clarity diamond weighing 0.82 CTTW, and 29 F/G-color, VS-clarity diamonds weighing 0.30 CTTW. It Includes a Tiffany Certificate.